Siemens SIMATIC S7-1200 Reference Manual page 78

Basic instructions
Point-to-point connection: CP 441
✔ ✔
Read accompanying signals at the RS 232 interface
✔ ✔
Write accompanying signals at the RS 232 interface
✔
Send data to printer
MODBUS slave (RTU)
✔ ✔
Modbus slave instruction for CP 341
✔ ✔
Modbus slave instruction for CP 441
MODBUS: CP 443
Establish communication between a CP and a partner that
✔ ✔
supports the OPEN MODBUS/TCP protocol
✔ ✔
Communicate as Modbus client
✔ ✔
Communicate as Modbus server
A5E33284667-AF
Extended instructions
Description
Technology
LAD/FBD
V24_STAT_441
V24_SET_441
MODB_341
MODB_441
MODBUSCP
MB_CPCLI
MB_CPSRV
Communication
STL
SCL
(not S7-1200)
PRINT
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